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Boost adjustable power supply design based on XL6008E +832332A

Overview

Referring to the circuit in the instruction document, the switch of the EN pin was removed. According to VOUT=1.25*(1+R2/R1), the actual resistance of resistors R3 and R4 is 10KΩ (adjustable) and 390Ω. In addition, two LEDs were added to indicate the input/output voltage. Run two wires to lower the resistance at some pads that require excess current.
Experience: Because it requires a large current of 3A, I try to use larger in-line components when selecting components. Copper paving on both sides is more conducive to heat dissipation, and two M3 openings are convenient for fixing the shell. In the real thing I'd also like to add heat sinks to prevent overheating.

Design Files

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Update:2025-06-24 01:41:02

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